BEARING DEVICE FOR WHEELS - NTN TOYO BEARING CO LTD

Title:

BEARING DEVICE FOR WHEELS

Document Type and Number:

WIPO Patent Application WO/2015/008569

Kind Code:

A1

Abstract:

This bearing device for wheels couples a wheel bearing (20) and a constant velocity universal joint (6), by screwing and tightening a bolt (42) to a bolt hole (41) provided on an outboard-side end section of a stem section (30) of an outer joint member (24) of the constant velocity universal joint (6), said bolt (42) being inserted from the outboard side into a bolt insertion hole (46) provided in a hub ring (1). A protruding section (37) is provided in the outer peripheral surface of the stem section (30) and a recessed section (40) that fits into the protruding section (37) so as to be capable of transferring torque and a guide recessed section (65) that swing-fits to the protruding section (37) and starts fitting with the recessed section (40) are provided in the inner peripheral surface of the hub ring (1). Before the fitting (press-fitting) of the protruding section (37) and the recessed section (40), the maximum angle of inclination (θ2) of the bolt (42) relative to the hub ring (1) is made greater than the maximum angle of inclination (θ1) of the outer joint member (24) relative to the hub ring (1), in a state in which the protruding section (37) and the entire area in the axial direction of the guide recessed section (65) are swing-fitted.

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Inventors:

NAGATA TSUTOMU (JP)
NORIMATSU TAKAYUKI (JP)

Application Number:

PCT/JP2014/065931

Publication Date:

January 22, 2015

Filing Date:

June 16, 2014

Export Citation:

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Assignee:

NTN TOYO BEARING CO LTD (JP)
NAGATA TSUTOMU (JP)
NORIMATSU TAKAYUKI (JP)

International Classes:

F16B4/00; B60B35/14; F16C19/18; F16C33/64; F16C35/06; F16D1/02

Foreign References:

JP2011225153A	2011-11-10
US5806936A	1998-09-15
JP2013079063A	2013-05-02
JP2012062013A	2012-03-29
JP2003335105A	2003-11-25
JP2009097557A	2009-05-07
JP2013079063A	2013-05-02

Other References: